docs: def sce2s(sc, et, lenout=_default_len_out):
      """
      Convert an epoch specified as ephemeris seconds past J2000 (ET) to a
      character string representation of a spacecraft clock value (SCLK).
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/sce2s_c.html
  
      :param sc: NAIF spacecraft clock ID code.
      :type sc: int
      :param et: Ephemeris time, specified as seconds past J2000.
      :type et: float
      :param lenout: Maximum length of output string.
      :type lenout: int
      :return: An SCLK string.
      :rtype: str
      """
      sc = ctypes.c_int(sc)
      et = ctypes.c_double(et)
      sclkch = stypes.stringToCharP(" " * lenout)
      lenout = ctypes.c_int(lenout)
      libspice.sce2s_c(sc, et, lenout, sclkch)
      return stypes.toPythonString(sclkch)